Greatly enhances user security by allowing support for YubiKey two step authentication. Google's two step authentication generates a 6 character code of only integers (1,000,000 possible codes).

YubiKey generates a 44 character key containing a 12 character identifier (public key) that does not change, as well as a 33 character unique one time use private key that changes every time you press the OTP button on your YubiKey, this is nearly 50 quattuordecillion (5 followed by 46 zeroes) possible keys.

If you find a bug, or wish to suggest a feature for this add-on, please do so on our issue tracker located hereScreenshots, because everybody loves screenshots!

If you have any questions regarding this add-on feature please do not hesitate to ask in the discussion thread.

Latest reviews

Great extension of core XF 2FA. This addon adds Yubikey OTP, FIDO U2F and SMS verification via Twilio. All 2FA features are working great on my live site and ThemeHouse is extremely quick to support and open to suggestions.